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Hypertension clinical trials

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NCT ID: NCT06468202 Not yet recruiting - Preeclampsia Clinical Trials

Effectiveness of Two Aspirin Doses for Prevention of Hypertensive Disorders of Pregnancy: ASPIRIN TRIAL

Start date: December 1, 2024
Phase: Phase 4
Study type: Interventional

The overall goal of this large, pragmatic, comparative effectiveness trial is to test the hypothesis that among at-risk individuals, 162 mg/day aspirin is superior to 81 mg/day in preventing Hypertensive disorders of pregnancy (HDP), and that there are multiple factors associated with adherence with aspirin therapy that will be important to identify to enable optimal implementation of study findings and population-level benefits.

NCT ID: NCT06466161 Not yet recruiting - Obesity Clinical Trials

Conical Forearm and Cylindrical Upper Arm Non-Invasive Blood Pressure (NIBP) Measurements in Pregnant Patients

Start date: August 1, 2024
Phase: N/A
Study type: Interventional

The diagnosis of hypertensive disease during pregnancy is predicated on strict blood pressure thresholds: 140/90 on at least two occasions measured four hours apart for both gestational hypertension and preeclampsia. An improvement in diagnostic accuracy of even 5mm Hg would be significant, as reflected by the US Association for the Advancement of Medical Instrumentation (AAMI), the British Hypertension Society, the European Society of Hypertension (ESH) Working Group on Blood Pressure (BP) Monitoring, and the International Organization for Standardization (ISO)consensus for validation of non-invasive blood pressure (NIBP) devices during pregnancy. Given the known inaccuracies of upper arm cylindrical cuff measurements in morbidly obese patients, a conical cuff which provides more accurate measurements will translate into direct patient benefit via more informed diagnosis and management. Fewer women may be exposed to unnecessary treatment, preterm delivery, and/or cesarean section. Recognizing the increasing prevalence of morbid obesity and hypertensive disease amongst pregnant women in the United States, the identification of a more accurate non-invasive cuff is desperately needed. Increasing the accuracy of NIBP measurements on Labor and Delivery has the potential to directly impact the management of tens of thousands of morbidly obese pregnant women diagnosed with hypertensive disease in the United States every year. Establishing the level of agreement between conical forearm and cylindrical upper arm cuffs will shed light on the presence and magnitude of any disparity between measurement methods. STUDY ENDPOINTS: Primary Outcome Measures: - Agreement between conical and cylindrical cuff systolic blood pressure across groups - Agreement between conical and cylindrical cuff diastolic blood pressure across groups Secondary Outcome Measures: • Agreement between conical and cylindrical cuff mean arterial pressure

NCT ID: NCT06465264 Completed - Clinical trials for Essential Hypertension

To Assess Allisartan Isoproxil/Amlodipine Tablets in Patients With Essential Hypertension Uncontrolled With Amlodipine or Allisartan Isoproxil

Start date: April 29, 2021
Phase: Phase 3
Study type: Interventional

The main objective of the study will be to assess the efficacy and safety of Allisartan Isoproxil/Amlodipine (240 mg /5 mg) in patients with mild to moderate essential hypertension uncontrolled after 4-week treatment with Amlodipine besylate(5 mg) or Allisartan Isoproxil (240 mg) .

NCT ID: NCT06465134 Recruiting - Hypertension Clinical Trials

Mechanisms for Atrial Fibrillation in Obstructive Sleep Apnea

Start date: November 1, 2023
Study type: Observational

Atrial fibrillation (AF) is the most common rhythm disorder and involves an increased risk of cardiovascular disease and death, impaired quality of life and a high proportion of healthcare consumption. An important risk factor is obstructive sleep apnea (OSA). However, it is not fully understood why OSA induces AF. It may be due to a proinflammatory state, sympathetic activation and acute changes in blood pressure during apnéas, but few studies are performed. Hypertension with its coherent arterial stiffness is related to all these factors, is common in OSA, and is the most common cause of AF. The cause of AF in hypertensive subjects is believed due to a pressure overloaded left heart, with dilation and fibrosis of the left atrium, promoting the development of AF. Hypertension and arterial stiffness can thus be important triggering factors for AF in OSA. In this project, teh investigators investigate the occurrence of OSA in AF patients. Furthermore, underlying mechanisms for the development and recurrence of AF after intervention in OSA patients are investigated. 300 patients scheduled for AF ablation or cardioversion are invited and examined with sleep registration, 24h blood pressure, aortic stiffness measurement, test of autonomic function, echocardiography, ECG and labs. The patients are followed at months 3, 6 and 12 with 7 days ECG for recurrence. The aim is to give insights into the need for screening for OSA in patients with AF. The study also aim at enabling preventive treatment through better understanding of underlying treatable mechanisms. The results are believed to lead to fewer new AFs, as well as fewer AF recurrences in patients with OSA.

NCT ID: NCT06462287 Recruiting - Apnea, Obstructive Clinical Trials


Start date: March 5, 2024
Phase: Phase 2
Study type: Interventional

Obstructive sleep apnea syndrome (OSAS) is associated with hyperaldosteronism with elevated plasma aldosterone/renin ratio, the physiopathological mechanism of which remains uncertain. This hyperaldosteronism contributes to the development of arterial hypertension and cardiovascular complications observed in patients with OSA, in particular by increasing arterial stiffness and heart rate variability. The frequent association of OSA with obesity with metabolic syndrome suggests that excess weight could be responsible for stimulation of aldosterone secretion independent of the renin/angiotensin system. Several studies indicate in particular that the production of mineralocorticoids by the adrenals could be activated by various adipocyte secretion products such as leptin and certain fatty acids after oxidation in the liver. In addition, a recent study showed that basal aldosterone secretion is also controlled by substance P released within the adrenal tissue itself by nerve fibers belonging to the splanchnic contingent. Thus, the oral administration of aprepitant, an antagonist of the substance P receptor (NK1 receptor), to healthy volunteers induces a reduction of approximately 30% in the overall secretion of aldosterone assessed by measuring aldosteronemia and 24-hour aldosteronuria. To the extent that OSA causes sympathetic hypertonia, the hypothesis is that the associated hyperaldosteronism could result from activation of the nervous control of aldosterone secretion, involving substance P and the NK1 receptor. If this is indeed the case, the administration of aprepitant to patients with OSA should result in a significant reduction in aldosteronemia.

NCT ID: NCT06461273 Not yet recruiting - Obesity Clinical Trials

Food is Medicine vs Lifestyle Medicine For Cardiovascular Kidney Metabolic (CKM) Syndrome

Start date: August 1, 2024
Phase: N/A
Study type: Interventional

The investigators are piloting a 3 month community-based lifestyle medicine program that incorporates experiences and education in urban agriculture, nutrition, culinary arts, and physical fitness to test the hypothesis whether this improves clinical and socio-behavioral outcomes of participants with Cardiovascular Kidney Metabolic (CKM) syndrome (high blood pressure, diabetes, high cholesterol, heart disease, and obesity) in comparison to the current medical care model (usual care) or providing healthy produce (medically tailored groceries).

NCT ID: NCT06460272 Not yet recruiting - Obesity Clinical Trials

Nutrition Outreach and Understanding: Research In Serving Hearts Through Healthy Eating And Tailored Support

Start date: June 19, 2024
Phase: N/A
Study type: Interventional

This study is a human-centered, three-arm, parallel-group, randomized control, implementation trial (n=75) to compare MTM (Medically Tailored Meals) only (14 meals delivered weekly for 10 weeks) vs. MTM + SMA (Shared Medical Appointments; once weekly sessions for 10 weeks) vs. a wait-list control group (MTM-Later) in patients with hypertension, type 2 diabetes, obesity, and/or metabolic syndrome. All intervention components will be culturally congruent (e.g., MTMs will include food that converges with culturally relevant diets and SMAs will be delivered by individuals with racial concordance to the target community). Primary outcomes will be implementation (recruitment and retention rates) and feasibility (engagement and satisfaction). Participants will be recruited from Cleveland Clinic's South Pointe Hospital in Warrensville Heights, a predominantly Black community with low socioeconomic status and high cardiovascular disease morbidity.

NCT ID: NCT06460233 Recruiting - Obesity Clinical Trials

Blood Pressure Changes After Bariatric Surgery

Start date: September 21, 2021
Study type: Observational

The aim of the study is to assess changes in blood pressure, cardiac function and selected laboratory measurements after bariatric surgery and to find most important factors associated with blood pressure reduction after weight loss. Description of the study Patients: consecutive patients with class III obesity (BMI ≥ 40kg/m2) or class II obesity (BMI 35-40kg/m2) with comorbidities, admitted for sleeve gastrectomy Methods: bedside and 24-hour blood pressure measurement, cardiac ultrasound and laboratory tests performed before surgery and at 1 week, 4 weeks, 6 months and 12 months after bariatric surgery

NCT ID: NCT06457711 Completed - Obesity Clinical Trials

Blood Pressure and Cardiometabolic Risk (Diet-to-HTN)

Start date: June 22, 2022
Phase: N/A
Study type: Interventional

Obesity is a significant health issue that increases the risk of serious cardiovascular problems. In recent years, two dietary methods, the Ketogenic Diet (KD) and Intermittent Fasting (IF), have become popular for their potential to treat obesity and its related issue, hypertension. While both diets are known for their effectiveness in weight loss, their specific impacts on blood pressure (BP) and overall heart health risks are less understood especially in menopausal women. The main goal of this study was to investigate how the Ketogenic Diet and Intermittent Fasting compare to a regular, unrestricted diet (referred to as Free Diet or FD) in terms of their effects on clinic blood pressure levels in menopausal women. Additionally, the study looked at changes in Body Mass Index (BMI), the percentage of total body weight loss, body fat percentage, waist and hip measurements, the ratio of waist-to-hip size, and the Phase Angle (PhA), which is a measure of the body's overall health status.

NCT ID: NCT06455683 Not yet recruiting - Ocular Hypertension Clinical Trials

The A D A G I O Study

Start date: June 2024
Study type: Observational

This study aims to investigate the effect of different types of glaucoma surgery on aqueous dynamics parameters (IOP, aqueous flow rate, trabecular outflow facility and uveoscleral outflow) in patients with uncontrolled open angle glaucoma or ocular hypertension (OHT)